REVISION OF EPILOBIUM. 93 
Jar towards the end; leaves 50 to 150 mm. long, lanceolate 
to oblong-lanceolate, acute, deeply and irregularly serru- 
late, mostly gradually narrowed to conspicuous slender 
petioles, glabrous except the uppermost, dull, thin, rugose- 
veiny; flowers very numerous, more or less nodding ; pet- 
als 3 to 5 mm. long, rosy; fruiting peduncles slender, 
mostly short; seeds obconical-fusiform, beakless, strongly 
papillate, .8 x 1.5 mm. ; coma at length cinnamon-colored, 
at least at base. — Willd. Enum. i. (1809), 411; Hauss- 
knecht, Monogr. 258; Barbey & Cuisin, pl. 9.— Wet 
ground and meadows, Canada to South Carolina, west to 
Wisconsin, Nebraska, and Missouri. — Specimens examined 
from Ontario, Maine, Massachusetts, Connecticut, New 
York, New Jersey, Pennsylvania, Virginia, South Carolina 
(Ravenel), West Virginia, Ohio, Illinois, Missouri, Kan- 
sas, Nebraska, Iowa, and Wisconsin. — Plate 19. 
This species, the general type of which is reproduced in 
a number of others which here follow it essentially in the 
order of their leaf and habit resemblance, differs from all 
of its congeners in the degree of serration of its leaves and 
especially in its elongated seeds destitute of the usual 
apical beak, and from all with which it is likely to be con- 
founded, in the nearly cinnamon-colored ripe coma (which, 
however, is white in immature capsules that have dehisced 
while drying). It is apparently everywhere associated 
with EH. adenocaulon, which begins to flower and fruit 
about a fortnight earlier, and differs in its very short- 
stalked leaves, rounded at base and less sharply toothed, 
and in its shorter seeds abruptly contracted and hyaline- 
beaked above, and with pure white coma. West American 
specimens which have been called Z. coloratum belong, for 
the most part, to forms of adenocaulon. 
18. E. Novo-Mexicanum, Hausskn. — With upcurving 
branches throughout, glandular-pubescent or subcinereous 
above; leaves 50 mm. long, elliptical-lanceolate, rather 
obtuse and prominently serrulute, mostly gradually nar- 
rowed to small winged petioles: otherwise about like 2. 
